Getting Started in 2013, Part #18, A look ahead


There is a look at the next five group topics in the new numbering system. The Head Group (1500) is the last expensive component of building a long block. The other groups here are mostly made of parts that came with your core engine and basic labor you can add yourself. Getting through groups 1000-1900 will give you an engine that is internally complete, and it is the lion’s share of the money spent building the engine

Later groups address oil systems, starters, ignitions, etc, all external systems that are bolted on your long block. All of this can be purchased as you go, adjusted on your own timeline and budget.  The later parts are intentionally broken down into affordable blocks that can be installed at one time, like the $516 starter system group (2400).


Head group (1500)

1500- Pair of heads with seats and guides

1501- Valve spring set

1502- Retainer set for intakes and keepers

1503- Exhaust valve rotators and keepers

1504- Intake valves -6-

1505- Valve seals

1506- Exhaust valves -6-

1507- Exhaust stacks -6-

1508- Welded on intake pipes



Valve train group (1600)

1600- Pushrods  -12-

1601- Pushrod tubes  -12-

1602- Pushrod O-rings  -24-

1603- Rocker arm set  -12-

1604- Rocker balls  -12-

1605- Nuts  -12-

1606- Lock nuts  -12-



Head clamping hardware (1700)

1700- Guide plates -6-

1701- Stud O-rings -12-

1702- Rocker studs -12-

1703- Upper head nuts -12-

1704- Upper head washers -12-



Steel engine cooling baffles (1800)

1800- Under cylinder cooling baffles -2-

1801- Clips to retain engine cooling baffles -4-

1802- Baffle between #1 cylinder and distributor

1803- Baffle between #2 cylinder and oil cooler



Valve Cover Group (1900)

1900- Valve covers -1 pair-

1901- Hold down clamps -8-

1902- Hold down hardware 1/4″-20 -8-

1903- Valve cover gaskets -2-

1904- Oil fill cap

About William Wynne
I have been continuously building, testing and flying Corvair engines since 1989. Information, parts and components that we developed and tested are now flying on several hundred Corvair powered aircraft. I earned a Bachelor of Science in Professional Aeronautics and an A&P license from Embry-Riddle Aeronautical University, and have a proven 20 year track record of effectively teaching homebuilders how to create and fly their own Corvair powered planes. Much of this is chronicled at and in more than 50 magazine articles.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: